package ACM;

import java.util.Scanner;

public class Main_02 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int num = sc.nextInt();
        while (num > 0) {
            int a = sc.nextInt();
            int b = sc.nextInt();
            System.out.println(a + b);
            num--;
        }
    }
}
